University of California at Davis
Department of Civil & Environmental Engineering
ECI-135: Structural Design: Concrete Elements
HOMEWORK SET 2
1. Find the nominal capacity of a rectangular beam given the following:
f c = 3 ksi; f y = 60 ksi
width b = 10 i

ECI-135 Homework #1 SOLUTIONS
1.
Admixtures
a) Superplasticizers/Water Reducers: help to increase workability hence allowing lower
water:cement ratios and, therefore, higher compressive strength. They are chemical
compounds that expand water molecules.
b)

ECI-135: Structural Design Concrete Elements
MID-TERM EXAM
Problem #1 (12 points)
A simply supported beam with the crosssection shown below carries uniformly distributed loads that
result in the following maximum moments:
Total dead load moment (MD) = 40

Department of Civil & Environmental Engineering
University of California, Davis
ECI 135: Structural Design Concrete Elements
HOMEWORK 6
1.
A reinforced concrete short square column with dimensions h = 16 and b = 16 is
reinforced with eight #9 bars (4 bars

ECI 135- Structural Design: Concrete Elements
Homework Set 3
DUE: OCTOBER 26
1)
An overhanging beam supports a super-imposed dead load of 1.2 k/ft and a uniform live
load of 2.0 k/ft. Select and design two critical sections of the beam using 3 ksi concret

ECI 135: Structural Design Concrete Elements
HOMEWORK SET #5
1.
An interior span of a continuous beam is shown below. The loads on the beam
are as follows: dead load = 1.5 k/ft (includes self-weight); live load = 1.8 k/ft
17.5
12
22 ft
Design the shear st

ECI 135- Structural Design: Concrete Elements
Homework #4
DUE: NOVEMBER 9, 2005
The plan view of a typical floor in a multistory building is shown below:
The floor system supports a uniform dead load of 150 psf (which can be assumed to include selfweight

University of California at Davis
Department of Civil and Environmental Engineering
ECI 135: Structural Design Concrete Elements
FALL 2006
Homework #1
NOTE: INCLUDE CLEAR SKETCHES/QUALITATIVE GRAPHS WHERE APPROPRIATE
1.
List three types of admixtures used